2nd hand, you are betting more than half of your stack on the turn so just push since u are already committed

3rd hand, it is correct to do a 2nd barrel since you have TPTK already

don't be too worried about draws and stuff. you are playing SSS so top pair top kicker is more than enough to see the showdown. anyone who tries to play speculative hands against you will lose money to you in the long run since he doesn't get implied odds due to your short stack size